3 Commits

Include renames

Author	SHA1	Message	Date
Robert Allan JamesandClaude Sonnet 5	9b6de5d6c7	riscv64: PLIC base address DTB-discovered, QEMU-virt constant as fallback (§V.3 item 3) ... plic_init() now takes boot_info->dtb (threaded through apic_init()) and tries fdt_find_node_by_compatible(dtb, "sifive,plic-1.0.0") -> fdt_find_prop_in_node(..., "reg", ...) before falling back to the QEMU-virt-specific constant it previously hardcoded unconditionally. Reuses the node-scoped DTB lookup primitive built for the aarch64 GIC base fix unchanged. s_plic_base is now a runtime uintptr_t, same shape as apic.c's s_gicd_base/s_gicc_base. This system's QEMU/UEFI riscv64 firmware does not forward a DTB to the guest (timer.c's own timebase-frequency read falls back too, confirmed in this boot's own log), so only the no-DTB fallback branch is exercised here -- the success branch (a real DTB with a matching PLIC node) stays unverified until real Milk-V Mars hardware. FABRIC-3.md's first-drafted claim that the success branch would run (based on a stale comment in plic.c's own pre-fix header) was checked against the actual log and corrected before this commit. 3-arch acceptance: amd64/aarch64 don't compile these files, so their runs are non-regression on untouched files only. riscv64's own boot log confirms the fallback path prints exactly as designed and boot reaches zuse)ok> unchanged. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019YcT3H2PQeyujrzjqS3Var	2026-09-05 00:56:25 -04:00
Robert Allan JamesandClaude Sonnet 5	b031b802e3	Rename FABRIC series: FABRIC.md->0, FABRIC-2.md->1, FABRIC-3.md->2, FABRIC-4.md unchanged ... FABRIC.md -> FABRIC-0.md FABRIC-2.md -> FABRIC-1.md FABRIC-3.md -> FABRIC-2.md (the current/living document) FABRIC-4.md unchanged (new #3 to follow separately) Every cross-reference repo-wide updated to match, including doc-comment citations inside kernel source (.c/.h) files -- done via an ordered placeholder substitution (FABRIC-3.md->placeholder2, FABRIC-2.md-> placeholder1, FABRIC.md->placeholder0, then placeholders resolved to final names) in a single pass per file to avoid double-shifting already-renamed references. One line in capsules/font.4th grew past the 64-char block-format limit as a side effect of the longer filename; shortened it and reverified with mkcapsule --lint (34/34 pass) before rebuilding. Verified 3-arch boot to ok> (amd64/aarch64/riscv64, each in the foreground) after the fix; logs and DoE CSVs from this session's verification runs included per this repo's own audit-artifact convention. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019YcT3H2PQeyujrzjqS3Var	2026-09-04 11:22:51 -04:00
Robert Allan JamesandClaude Sonnet 5	5f4df673c1	riscv64: PLIC bring-up, external-interrupt substrate (item 4.3.5b) ... Punch list §25 item 4.3.5b complete. sie.SEIE enabled, PLIC threshold/claim/complete wired into the trap handler. Verified with a UART-loopback synthetic interrupt (PLIC has no software set-pending register, unlike GICv2): claim_count=1, last_irq=10, IIR confirms genuine receive-data cause, byte matched exactly. Self-test code run once for evidence then fully reverted, per Captain Bob's ruling; only the permanent substrate remains, no source enabled by default. Three-arch acceptance boot clean, zero exceptions. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>	2026-08-08 11:24:47 -04:00